Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina; sötvatten; brackvatten bottenlevande; amfidrom (Ref. 46888). Tropical; 22°C - 29°C (Ref. 36880); 33°N - 5°S, 98°W - 35°W (Ref. 117424)
Western Central Atlantic: Southern Florida and southern Texas in USA to eastern Brazil. Eastern Central Atlantic: Macias Nguema (Fernando Po).
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 90.0 cm TL hane/ej könsbestämd; (Ref. 11344); common length : 36.0 cm TL hane/ej könsbestämd; (Ref. 12193); publicerad maxvikt: 7.5 kg (Ref. 11344)
Taggstrålar i ryggfenan (totalt) : 7; Mjukstrålar i ryggfenan (totalt) : 9; Taggstrålar i analfenan: 1; Mjukstrålar i analfenan: 9.
Body shape (shape guide): fusiform / normal.
Adults occur in fresh water, often well inland. Found over sand streams, usually in current near cover (Ref. 86798). Inhabits larger free flowing clear water streams (Ref. 11225). They lie mostly on the bottom in slower moving part of streams, sometimes on logs or large stones and on leaf debris or gravel (Ref. 11225). A carnivorous and benthic fish that relies on its sluggish behavior and cryptic coloration (Ref. 36880). Feeds on all greater invertebrates and regularly also fish (Ref. 92840).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00832 (0.00415 - 0.01667), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.6 ±0.57 se; based on food items. |
Resiliens (Ref. 120179) |
Mycket låg, lägsta populationsfördubblingstid mer än 14 år (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
High to very high vulnerability (66 of 100). 🛈 |
Priskategori (Ref. 80766) |
Unknown.
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